Wire-fence fabric.



G. E. MIRFIELD.

WIRE FENCE FABRI.

APPLICATION FILED Nov.1s. 1909.

982,15. Patented. Jan. 17, 1911.

Meiden/ 77M MM MT1/Cla. y

ENTTE STATES PATENT QEFTCE.

GEORGE E. MIRFIELD, OF STRUTHERS, OHIO.

WIRE-FENCE FABRIC.

To all whom it may concern:

Be it known that I, GEORGE E. MIRFIELD, a citizen of the United States, residing at Struthers, in the county of Mahoning and State of Ohio, have invented certain new and useful Improvements in Vire-Fence Fabric, of which the fo-llowing is a specification.

The present invention relates more particularly to the form of twist in the strand wire where it is wrapped around the stay wire; and has for its object to construct a twist which will tighten when strain in any direction is exerted on either the strand or stay wire; which will be wrapped around the stay wire so as to grip the same at a plurality of points; which will be formed so as t-o prevent sliding' of the twists along the stay wire; which will allow of the contraction and expansion of the wires without impairing in any way the gripping effect of the twist upon the stay wire; and which cannot become untwisted by rough halidling of the fence.

The invention consists in the features of construction and combination of parts hereinafter described and claimed.

In the drawings, Figure 1 is a view show ing a strip of fencing with the strand wire twisted in the manner employed in the present invention; Fig. 2, an enlarged perspective of the twist; and Fig. 3, a horizontal section through the twist, showing the stay wire in elevation.

The stay wire i is provided, at the point where the strand wire 5 is-wrapped around it, with a bend or crimp G; and in wrapping the strand wire around the stay wire the strand wire is first entered behind the stay wire at a point approximately the center of the crimp, as indicated at 7. rlhe strand wire is then drawn to one side and looped around the stay wire, the point where the looped portion of the strand wire passes in front of the stay wire being` approximately7 at a terminus of the crimp, as indicated at 8. The strand wire, after being looped around the stay wire, extends backward in the rear of the stay wire, as at 9, and is again looped around the stay wire, as at l0, the point whe-re the strand wire passes in front of the stay wire being approximately'at the other extremity of the crimp in the stay wire, the strand wires being looped around the stay wires at points approximately the extremities of the crimp in Specification of Letters Patent.

Application led November 13, 1909.

Patented Jan. 17, 1911. Serial No. 527,871.

the stay wires. After being twisted the second time around the stay wire, the strand wire is bent backward and passes behind the stay wire and behind the portion of the strand wire lying approximately in the center of the crimp and is intertwined with this portion of the strand wire, as indicated at l1, and then passes upwardly in front of the knotted portion of the strand wire but behind the stay wire to the next twist. The loop thus formed in the strand wire resembles in form and gripping properties the ordinary double-twist knot. The strand wire meeting' and leaving the stay wire at points adjacent to one another allows the the strand wire extending between the stay wires to extend in substantial alinement along the length of the fence. A pull or strain on the strand wire in either direction will cause the strand wire to impinge and grip the stay wire at the points where the loops of the strand wire pass across the stay wire, and will cause the portion of the strand wire lying adjacent to the center of the crimp in the stay wire to tightly impinge itself against the stay wire at this point, thus producing four points on the strand wire, which will impinge and grip the stay wire when a strain in either direction is exerted on the strand wire, which impinging and gripping will increase in proportion to the strength of the pull or strain exerted.

From the above description it will be seen that a pull in either direction on the strand wire will cause the loops in the wire to be drawn in toward each other, tightening the twist and increasing the gripping action on the stay wire; and a strain on the stay wire will result in the crimped portion being forced tightly against one of the twists in the strand wire and result in a tight binding of the two wires at this point. Thus the twist of the present invention will tighten and hold the stay wire in tight i1npingement against the strand wire when a strain in either direction is put on the stay wire, or when a strain in either direction is put on the strand wire, thus effectively preventing the stay wires from becoming loosened from the strand wire and sliding along the strand wire toward or from each other and destroying the mesh of the fence.

The forming of a bend or crimp in the stay wire, and the twisting of the strand wire around the crimp, gives a double means of holding the twist in place-one means consisting of the impingeinent of the twisted portion on the strand wire, and the other means consisting of the crimp in the stay wire, which forins a protruding surface which cannot be drawn through the twist.

I claim:

l. A wire fence fabric, consisting of strand and stay wires, the strand wires being twisted .aiound the stay wires at the juncture of the two wires with a doubletwist knot, consisting of oppositely disposed looped portions, a connecting portion between the looped portions, and an intertwined portion intermediate the looped portions, the intertwined portion of the knot Y- lying bet-Ween the stay wire and the connecting portion, substantially as described.

2. A wire fence fabric, consisting of strand and stay wires, the strand wires being twisted around the stay wires at the juncture of the two wires with a double- I twist knot, consisting of oppositely disposed looped portions, a connecting portion between the looped portions, and an intertwined portion intermediate the-looped portions, the intertwined portion of the knot lying between the stay wire and the connecting portion, the stay wires being formed with'a bend or crimp in that portion extending between the loops ofthe strand wires, 5 

